George gillies



(No Model.)

G. GILLIES.

HARROW N0.415,410. Patented Nov. 19, 1889.

I 1F J J other.

UNITED STATES PATENT ()FFICE.

GEORGE GILLIES, OF GANANOQUE, ONTARIO, CANADA.

HARROW.

SPECIFICATION forming part of Letters Patent No. 415,410,dated November19, 1889. Application filed April 13, 1839. Serial No. 3 07,097- (Nomodel.) Patented in Canada December 14, 1888, No. 30,400-

T0 all wh0m it may concern Be it known that I, GEORGE GILLIES, a subjectof the Queen of Great Britain, residing at Gananoque, in the county ofLeeds and Province of Ontario, Canada, have invented a new and usefulImprovement in Spring- Tooth Ilarrows, (for which I have obtained apatent in Canada, No. 30,&OO, dated December 14, 1888,) of which thefollowing is a specification.

This invention relates to spring-tooth harrows; and it has for itsobject to provide a device of this class which shall be simple inconstruction, strong, and durable.

The invention consists, first, in an improved construction ofaharrow-frame which is made of a series of flat metallic bars providedat their adjacent edges with ribs or webs which are removed or notchedat the intersecting points, by which construction great strength andrigidity are attained.

The invention consists, secondly, in an improved clip for attaching thespring-teeth at the point of intersection of the harrow-bars, wherebythe said harrow-bars are also connected without the use of bolts, theuse of which would necessitate the punching, and consequently theweakening, of the harrowbars.

The invention further consists in the improved construction andarrangement of details, which will be hereinafter fully described, andparticularly pointed out in the claims.

In the drawings, Figure 1 is a top view of a part of my improved harrow,showing two intersecting harrow-bars and the clip for connecting thesame and for attaching the spring-tooth. Fig. 2 is a vertical sectionalview taken on the line :0 0c in Fig. 1. Fig. 3 is a sectional view onthe line y y of Fig. 1. Fig. 4 is a detail perspective view of thecombined clip and spring-tooth holder. Fig. 5 is a perspective view of aportion of two of the intersecting harrow-bars separated from each Thesame letters refer to the same parts in all the figures.

A A designate the bars of the harrow, which may be arranged diagonally,or at rightangles to each other,and which are constructed of channelsteel or iron, and the outer sides of which are provided withlongitudinal segmental grooves 13, whereby surplus material is'dispensed with. The inner or adjoining faces of the bars A A areprovided along their edges with webs or flanges C C, which at the pointof intersection of the said harrow-bars are notched, as shown at D D, toenable the faces of the said bars to come closely together, so that theportions of the flanges C of each bar located intermediately between thenotches shall bear against the face of the opposite bar; or, ifpreferred, the ribs or webs may be wholly removed at the point ofintersection of the bars, so as to cause the faces of the latter to comeinto contact with each other.

E designates a clip, the legs of which are seated in the angles at theintersection of the harrow-bars, their screw-threaded ends F Fprojecting above the same.

G designates the clip-plate, which also serves as a tooth-holder. Saidplate is provided with laterally-extending ears or lugs H H, havingperforations 1, whereby they are adjusted upon the clip. The under sideof the clip-plate G has a convex-curved seat to accommodate the crown orhead of an ordinary spring-tooth, and it is provided along the edges ofsaid seat with longitudinal flanges K K to hold the tooth securely andprevent it from vibrating when the clip or clamp is tightened.

The operation of this invention and its advantages will be readilyunderstood from the foregoing description, taken in connection with thedrawings hereto annexed.

The parts composing my improved harrow are few, consisting merely of theharrow-bars, the clips, the clip-plates or tooth-seats, and thespring-teeth, and the harrow may consequently be easily and quickly puttogether. The simplicity of construction also insures great strength anddurability, and the clips perform efficiently the double purpose ofconnecting the harrow-bars and of securing the spring-teeth theretowithout the use of separate seat-blocks or other devices.

Having thus described my invention, I claim 1. A harrou frame composedof metallic bars crossing each other, said bars being provided withlongitudinal segmental grooves in theirouter faces and with ribs or websalong the edges of their inner faces, said ribs or webs being removed,notched, or broken down at the points of intersection of the harrowbars,in combination with clips for connect ing said barrow-bars and securingthe springteeth at their points of intersection,substantially as setforth.

2. In a harrow, the combination of the metallic bars crossing eachotlier and provided with ribs or Webs around the edges of their meetingfaces, said ribs or webs being removed,notched, or broken down at thepoints GEORGE GILLIES.

\Vitnesses PHILIP HEASLIP, G. HEASLIP.

